CHAPTER
16-1
Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
16
Alarm and TCA Monitoring and Management
This chapter describes Cisco Transport Controller (CTC) alarm and threshold crossing alert (TCA)
monitoring and management. To troubleshoot specific alarms, refer to the Cisco ONS 15454 DWDM
Troubleshooting Guide.
Note Unless otherwise specified, “ONS 15454” refers to both ANSI and ETSI shelf assemblies.
Chapter topics include:
• 16.1 Overview, page 16-1
• 16.2 Alarm Counts on the LCD for a Node, Slot, or Port, page 16-2
• 16.3 Alarm Display, page 16-2
• 16.4 Alarm Severities, page 16-8
• 16.5 Alarm Profiles, page 16-9
• 16.6 External Alarms and Controls, page 16-13
• 16.7 Alarm Suppression, page 16-15
• 16.8 Multishelf Configuration Alarming, page 16-16
• 16.9 Threshold Crossing Alert Suppression, page 16-17
16.1 Overview
CTC detects and reports alarms generated by the Cisco ONS 15454 and the larger network. You can use
CTC to monitor and manage alarms at the card, node, or network level. Default alarm severities conform
to the Telcordia GR-474-CORE standard, but you can set alarm severities in customized alarm profiles
or suppress CTC alarm reporting. For a detailed description of the standard Telcordia categories
employed by Optical Networking System (ONS) nodes, refer to the Cisco ONS 15454 DWDM
Troubleshooting Guide.
Note ONS 15454 alarms can also be monitored and managed through Transaction Language One (TL1) or a
network management system (NMS).
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